Shock-absorber.



F V. RISINGER.

SHOCK ABSORBER.

APPLICATION men 31m 5, um.

Patented Dec. 4,1912? 2 SHEETS- SHEET 1 disks, third, to.

V out departing from sorber constructed in a ordance w th FRANK V. RISINGER, F

YOUNGSTOWN, OHIQ, ASSIGNOR TO THE BLOCK GAS MANTLE COMIANY, 0F YOUNQSTOWN, OHIO.

sHocx-Ansonnna.

' Application filed July 5, 1917.

To. all whom it may concern Be it known that I, FRANK V. B-rsusonn,

a citizen of the United States, residing at Youngstown, in the county of Mahoning and.State of Ohio, have invented a new and useful Shock-Absorber, of which the follow ing isa specification.

The subject of this invention is a shock absorber wherein rotary disks cob erate with stationary stops to progressive y increase resistance to the moving parts, and the objects of the invention are, first, to provide a shock absorber in which friction disks are successively brought into play, second, to provide a shock absorber with resilient means for. binding the friction plates or provide a novel adjustment for the resilient element of a shock absorber, fourth, to provide a novel resilient element for a shock absorber, fifth, to provide a simple, durable and efiicient shock absorber.

With the foregoing and cher objects in view which will appear as the description proceeds, the in ention resides in the combination an arrangement of parts and in the details of construction hereinafter dosribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, n be made within the 'scope of what is claimed, withthe spirit .of the invention; t

A' practical embodiment of "the invention is shown in the accompanying drawings, wherein:

Figure 1 is a side elevation of a shock invention, indicated as attached to a ve- Fig. 2 is a vertical section on the line 2--2 .of Fig'il. Fig. 3 is a view in elevation of ode of the disks.

4 is a front elevation,- the front plate and adjiistingscrew removed.

' .Fig. 5 is a-vle'w inelpevatlon of the spring be-minin diskfl Fig. 6 is a. view i n elevation of the spring. Fig. 7 is a view in-elevation of the spring tensioning disk. r i Fig. 8 is a' detail view of thespacing ring. FigQQ is a detail view of the 'adyusting screw; 1

Specification of Letters Patent Patented Dec.4,191'7. Saltel in. 178,799.

Fig. 10 is a longitudinal section of the con nectin'g link.

Fig; 11 is a bearing shell.

Referring to the drawings by numerals detail view of the conical of reference The shock absorber consists of a pliite 1 adapted to be secured to the chassis 2 or other suitable portion of a vehicle by means of bolts This plate forms the support for the operative"mechanism of the device A cylindrical casing 4,- is secured to the plate 1 by bolts 5, or otherwise, which pass through aliniug apertures formed in the plate 1 and the casing t. The plate and easing attached thereto rot-1a a housing for the main element of the device.

The head end of the casing l is provided with a'central aperture, (5 as shown.

\Vithin the casingi a series of friction disks 7, three being shown in the present instance, are mounted. Between the disks 7 are secured spacing rings 8 for the purpose of holding the friction disks properly apart. A spring retaining disk 9 is also mounted "in the casing and this disk is formed with a peripheral flange 10. A plate 11 closes the opening in the casing and overlies the same. A spacing ring 12 is placed between this plate 11 and the adjacent fric tion disk 7 to allow the, parts free motion without binding on the head of the casing l. The friction disks '7, spacing rings 8, disk 9, plate 11 and ring 12 are provided with alining apertures which also aline with apertures in a crank arm 13, and these parts are bound together by screws 14 which pass through said apertures. l/Vhile screws 14 have been shown and described as the fastening moans,

for binding these parts together.

Seated on the disk 9, within the annular flange IQ, is adisk 15, formed'of resilient material and having its center out out to present the inwardly projectin fingers 16. The disk 15 may be dishcdsligatl y, as seen most clearly in Fig. 2, and have its fingers resting on he serrated inner portion '17, of a disk 18, the central portion of-which is apertured and struck to forman annular flange 19 which is i mam-1 thread-'- ed to receive an adj usting screw 20. The

screw 20 passes through alining apertures formed in the arms 13 and plate 1.1., and has its inner chisel shaped end 21 seated in a groove :21- slrnck in the plate 1. This con struction, as will be readily understood yieldingly holds the screw in its adjusted position.

The resilient disk 15 is provided with a small boss or stub 15 projecting from one face thereof and entering an opening formed in the disk 18. The disk 18 may be formed with a series of openings, as indicated at 18 and 18 in any one of which the stub l5 is placed when the device is assembled. The opening in which the stub is placed will, of course depend on the character of; vehicle the absorber is to be used on. The plain 18 is provided with a series of spaced openings the edges of which are struck up, as indicated at 19 and rest upon the plate 1 to which the disk is secured by rivets or other wise.

Between the friction disks 7 and between one friction disk and the spring retaining disk 9, segmental vplates are mounted Thse plates are arranged in sets, here shown as 'COIISIStIHg of three segments 23, 24 and. 25.

Each set forms a substantially complete disk. In the present instance three sets of segments are shown, the segment of each'set being the same size and slightly larger than other segments in the set. The segment 24 of each set is of uniform size and. slightly smaller than the segment 23 but larger than the segment 25. All segments 25 are of the same size.

Each segment is formed with a. pair of lugs or fingers on its arcuate edge which. are positioned to engage the screws'5 which screws act as stops to limit the movements of the segments. As will be noted, the lugs on the disk 23, the largest. disk of each set, are the largest, that is the widest lugs of the set. It will also be noted that'the lugs 26 onithe segment 23 of the innermost set are wider than the lugs 26 or 26" of the intermediate or outermost setsrespectivelyw The lugs 26 of the intermediate set are also wider than those 26" 'of the outermost set.

The lugs 2-7, 27' and 27" on the segments 24, are next in width to the lugs 26, 26 and 26", antler-ranged in the same order, while job the lugs 28, 28 and 28" of the segment 25 are the narrowest lugs, and also arranged in the order of the lugs-0n the other segments. By this arr-an ement as the disks turn with the arm 13 hey carry thesegments with them, since the segments are 'frictionall' 1 held,'and the movement impartedto one so out is limited by the lugs and screws 5.

he and of the crank arm 13 is connected by a link 29 to a bracket 30 which is clamped b U bolts 31 to the spring 32 or other suita le part of the vehicle.

The link 29 and its pivotal connection areshown most clearly in Fig. 10, and consist of the Sides 33 which are struck up at each end to form the dished portions 3 L which forms a seat for a leather packing or washer 353. Other suitable material may of course, be used for this washer. The journaled. end of the crank 1.3, and also the supporting arm of the bracket 30 is formed with an aperture through which extends a sleeve or bushing 36 which is firmly afiixed within the a imrture in any suitable and well known manner. Opposed frusto-conical bearin members 37 are mounted on the sleeve on are secured at their base to tho crank'lS or arm of bracket 30, as the case may be, by 'rivets or otherwise. The bearing end just described is positioned. between the sides of the link within the dished ends, and is pivotally secured therein by bolts 38 which pass through the sleeves 36 and. apertures formed in the dished ends, and are held in law by nuts 2-39 which are threaded on the olts.

In practice the device operates as follows:

[The device being assembled as described,

the arts are placed under proper tension by t e screw 20 which will draw the center of the disk 18 forward or allow it ,to reccdc, and thereby place greater or less tensignapn the resilient disk 15. As the ve hicle body rises and falls on its springs,

theoraiik arm 13 will rock about its pivotal point and carry the friction disks 7 collars 8 a'ndd1sk-9 with it. Rocking the disks 7 and 9 will cause the segments 23, 24 and 25 to be carried along until the lugs come in contact with screws 5. As shown in the present instance, downward movement of the crank will cause lugs '26 to first contact screws 5; then lugs 27 of that series will contact screws 5, and lastly lugs 28 will contact screws 5. In the intermediate and outer series of segments the same order of contact takes place, the lugs in the inter mediate seriesmeetin corresponding lugs 0 ,the outer series.

By this means segments which are frict'ionally held between disks are successively held. against movement and conse' uently screws 5- before thepresent an increasing frictional s'uruce to retard motion.

From a consideration of the structure it will be seenthat on'initiol motion all parts are moving in unison and there is consequentlly very little friction, thus allowing free p ay tothe' parts during normal motion of the vehicle, v

The mot-ion imparted to. the resilient disk 15 will bedue. t'othe frictional contact. be.- twe'cn saiddisk and" its] retaining .9. As the resilient disk revolves, the I'igers will move from 'the lowtploiuts 40 offlthe serrated portion in wh'ich' g and: will move toward points "41.

This will tend to increase-.56; men of the normally li,

spring; The amount of relative movement between the disk and the disk 18 is controlled by the extent of the owning in which the stub 15 is placed. hen the stub 1-5 comes in contactwith the side of the opening and locks the plates against relative movement the resilient disk acts as.

a "a'iction disk. t On return motion of the parts the action 'justdescribed is repeated in the reverse direction as will be apparent.

Having thus described the invention, what is claimed as new is:

thesegments againstrevolution, a serrate 1. A shock absorber, comprising a casin' disksr'evolublewithin the casing, a era arm secured to the disks and operable to. revolve the same segments frictlonally held between the dy movable members, disks movable with one of the members, friction elements between the disks, adisk secured to the other element and formed with a serrated portion, an adjustin'g screw for flexing said disk, and a' resilient element engaging the serrated porusting screw for flexing. the sar tion and movable thereon-to vary the binding force of the disks-on the friction 'ele- 3. A shock absorber, comprising relatively movable members, disks movable with one of the members, friction elements between the disks, a disk secured to the other element and formed with a serrated portion aresilient element en aging the serrated portion and movable t ereon to va the inding force of thedisks on the friction elements, and means for regulatin the motion of, the resilient element wit respect to the serrated disk. r

- ,4. A shock absorber, comprising relatively movable members, friction elementsbetween the members, a link pivotedto one member consisting of side bars, dished ends on the side bars, a sleeve secured to the member, opposed frusto conical bearing members on the sleeve andjsecured to the member, a bolt passing through the sleeve and dished ends, and means for securing the link to a portion of a vehicle;

In testimonythat I claim the foregoing as my own, I have hereto afiixed my slgna ture'inthe presence of two witnesses.

FRANK VIBISINGER.

Witnesses:

A Tnoms 'Woo'nwano,

'H. E. Vnme'nn; u 

